Magnetic 15mm compression scale reducer for individual appliance protection. UK made, maintenance free, and delivers immediate limescale control with no power or running costs.
🚚 Delivery in up to 5 working days (may be sooner) on this product
The Monarch SI-28 Inhibitor offers WRAS approved 28mm scale protection with a self-cleaning catalytic core, ideal for large homes—maintenance-free and 10-year warranty included.
🚚 Delivery in up to 5 working days (may be sooner) on this product
The Monarch SI-22 Inhibitor uses a WRAS approved catalytic core to deliver 22mm scale prevention for boilers, showers, and household appliances—no maintenance required.
🚚 Delivery in up to 5 working days (may be sooner) on this product
The Monarch SI-15 Scaleout Inhibitor uses a patented catalytic core to prevent limescale in boilers, showers, and appliances—WRAS approved and designed for 15mm pipework.
15mm Electrolytic Scale Inhibitor with chrome-plated copper body, compression fit, and WRAS approval, ideal for boiler or whole-home limescale protection and backed by a 10-year guarantee.
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